Optimize the location of text labels to minimize overplotting text.
label(
x,
y = NULL,
labels = seq_along(x$x),
type = c("text", "shadow", "box"),
...
)label() is called it for its side-effects: it results in a graphic
being displayed.
A numeric vector giving the x and y coordinates of a set of
points. If y is NULL, an attempt is made to interpret x in a suitable
way (see grDevices::xy.coords()).
A character vector or expression specifying the text
to be written.
A character string specifying the shape of the field.
It must be one of "text", "shadow" or "box". Any unambiguous substring
can be given.
Further arguments to be passed to graphics::text(),
particularly, character expansion, cex and color, col.
N. Frerebeau